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Calculation torsional from DC Motor

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Vauxdvihl

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Hello,

i have "only" measured datas from a brushtyped DC motor.
- Voltage
- Current
- Angular Speed

Does anybody know how to calculate the torsional from the motor?

Thanks
BR
Vaux
 

Ignoring friction losses, it's proportional to the current. You can easily verify this by applying well-known DC motor
formulas from a text book. If you don't know the I/m constant of your motor, conservation of energy law can you give a rough estimation.
 

Hi FvM,

can you please give me some more informations?

I mean i do have a characteristic curve from the motor, but the current is "only" the Imax current.
This is not the current that i have measured.
Thanks
BR
Vaux
 

You have to measure current and speed in unloaded and loaded operation.
 

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